L5973D013TR

The L5973D013TR is a high-performance step-down (buck) voltage regulator manufactured by STMicroelectronics. It is designed to provide a stable output voltage with high efficiency, making it suitable for a variety of applications, including industrial, automotive, and consumer electronics.

Key Features:

1. Input Voltage Range: The L5973D013TR can accept a wide input voltage range, typically from 8V to 40V, allowing it to be used in various power supply scenarios.

2. Output Voltage: This regulator is capable of delivering a fixed output voltage of 3.3V, which is commonly used in digital circuits and microcontroller applications.

3. Output Current: The device can provide a maximum output current of up to 1.5A, making it suitable for powering devices that require moderate current levels.

4. Efficiency: The L5973D013TR boasts high efficiency, often exceeding 90%, which helps in reducing heat generation and improving overall system reliability.

5. Switching Frequency: The regulator operates at a fixed switching frequency, typically around 300 kHz, which helps in minimizing the size of external components such as inductors and capacitors.

6. Thermal Protection: It includes built-in thermal shutdown features to protect the device from overheating, ensuring safe operation under various load conditions.

7. Short-Circuit Protection: The L5973D013TR is equipped with short-circuit protection, which helps prevent damage to the device and the load in case of a fault condition.

8. Package Type: The device is available in a compact DPAK package, which is suitable for surface mounting and helps save space on printed circuit boards (PCBs).

9. Application Areas: This voltage regulator is ideal for applications such as power supplies for microcontrollers, sensors, and other electronic devices that require a stable 3.3V supply.

Electrical Characteristics:

• Quiescent Current: The quiescent current is low, which is beneficial for battery-powered applications where power consumption needs to be minimized.
• Load Regulation: The device provides good load regulation, ensuring that the output voltage remains stable even with varying load conditions.
• Line Regulation: It also offers excellent line regulation, maintaining output voltage stability despite fluctuations in input voltage.

Conclusion:

The L5973D013TR from STMicroelectronics is a robust and efficient step-down voltage regulator that meets the demands of modern electronic applications. Its combination of high efficiency, thermal protection, and compact packaging makes it a versatile choice for designers looking to implement reliable power management solutions in their projects.